Finding the Fourth Proportional to 1,430,829,396.96, 2,146,243,920.48 and 461,481,012.96
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Solution
The fourth proportional to 1,430,829,396.96, 2,146,243,920.48 and 461,481,012.96 is: 692,221,463.01
Step by Step Solution
- Step 1: Write the proportion equation
1,430,829,396.96 : 2,146,243,920.48 = 461,481,012.96 : x - Step 2: Convert to fraction form
1,430,829,396.96/2,146,243,920.48 = 461,481,012.96/x - Step 3: Cross multiply
1,430,829,396.96x = 2,146,243,920.48 × 461,481,012.96 - Step 4: Simplify right side
1,430,829,396.96x = 990,450,818,482,352,000 - Step 5: Solve for x
x = 990,450,818,482,352,000/1,430,829,396.96 - Step 6: Final answer
x = 692,221,463.01
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.